code: def test_hyperhyponyms(self):
      # Not every synset as hypernyms()
      self.assertEqual(S("travel.v.01").hypernyms(), [])
      self.assertEqual(S("travel.v.02").hypernyms(), [S("travel.v.03")])
      self.assertEqual(S("travel.v.03").hypernyms(), [])
  
      # Test hyper-/hyponyms.
      self.assertEqual(S("breakfast.n.1").hypernyms(), [S("meal.n.01")])
      first_five_meal_hypo = [
          S("banquet.n.02"),
          S("bite.n.04"),
          S("breakfast.n.01"),
          S("brunch.n.01"),
          S("buffet.n.02"),
      ]
      self.assertEqual(
          sorted(S("meal.n.1").hyponyms()[:5]), first_five_meal_hypo
      )
      self.assertEqual(
          S("Austen.n.1").instance_hypernyms(), [S("writer.n.01")]
      )
      first_five_composer_hypo = [
          S("ambrose.n.01"),
          S("bach.n.01"),
          S("barber.n.01"),
          S("bartok.n.01"),
          S("beethoven.n.01"),
      ]
      self.assertEqual(
          S("composer.n.1").instance_hyponyms()[:5],
          first_five_composer_hypo,
      )
  
      # Test root hyper-/hyponyms
      self.assertEqual(
          S("person.n.01").root_hypernyms(), [S("entity.n.01")]
      )
      self.assertEqual(
          S("sail.v.01").root_hypernyms(), [S("travel.v.01")]
      )
      self.assertEqual(
          S("fall.v.12").root_hypernyms(),
          [S("act.v.01"), S("fall.v.17")],
      )
  
file_path: nltk/nltk/test/unit/test_wordnet.py
imports: import unittest
  from nltk.corpus import wordnet
  from nltk.corpus import wordnet_ic
label_desc: Use image node_id 3 for calling the WordnNetDemo obj's underlying member method code with example usage: obj.test_hyperhyponyms() without return types